codice:
#include <stdio.h>
#include <string.h>
typedef struct PIANO_CARTESIANO
{
int x, y;
}point;
int main()
{
point couple[3];
int i;
for(i=0; i<3; i++)
{
scanf("%d", couple[i].x);
scanf("%d", couple[i].y);
}
return 0;
}
gcc -Wall -O ciao ciao.c
ciao.c: In function ‘main’:
ciao.c:17: warning: format ‘%d’ expects type ‘int *’, but argument 2 has type ‘int’
ciao.c:18: warning: format ‘%d’ expects type ‘int *’, but argument 2 has type ‘int’
ciao.c:17: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result
ciao.c:18: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result
ciao.c:17: warning: ‘couple’ is used uninitialized in this function